headboard mount for amazon echo dot speaker works with most echo dot versions if they are cylindrical. no support required on this 2 part design. about 50g of pla filament and under 2 hour print time on bambu lab p1s as tested. this design also hides the power cable and fits best with ikea malm headboard styles (41mm) hook. No tape or glue required but could be added for additional strength if necessary. Hope this model helps! Thank you and print on my friends!